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Find the points on the x-axis, each of which is at a distance of $10$ units from the point A$(11, -8)$.
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Let the point on x-axis be P$(x, 0)$
PA = $10 \Rightarrow PA^2 = 100$
$(x - 11)^2 + (0 + 8)^2 = 100$
$(x - 11)^2 = 100 - 64 = 36$
$(x - 11) = \pm 6$
x = $17, 5$
PA = $10 \Rightarrow PA^2 = 100$
$(x - 11)^2 + (0 + 8)^2 = 100$
$(x - 11)^2 = 100 - 64 = 36$
$(x - 11) = \pm 6$
x = $17, 5$